Perancangan Alat Proses Styrene Production
Jul 08, 2015
Perancangan Alat Proses Teknik Kimia UNIVERSITAS SULTAN AGENG TIRTAYASA
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V-401
Letaknya Vertikal
Carbon Steel
L/D = 3
Volume Vessel = 34,7 m3
Kondisi Operasi ,
P = 99 kPa = 14.36 psi
T = 65 ᵒC= 149 ᵒF
Asumsi ,
Grade SA285
Type head = torispherichal
E = 1 (full)
S = 12900 psi pada T = 149 ᵒF
Corrosion allowance = 0,125 inch
Design Vessel (V-401)
= (2*0,0778*D3) + (π*0,5D2*3D)
•D = (34,7/2,5106)^1/3
= 2,39984937 m
= 94,48225866 inchi
•R = 47,24112933 inchi
•L/D = 3 L = 3*D = 3*2,39984937 = 7,199 m = 283,45 inch
Pembuktian volume vessel
Volume Vessel =(2*0,0778*D3) + (π*0,5D2*3D)
= (2*0.0778*2.3998 m 3) + (3.14*(0.5*2.3998m) 2*3*2.3998m)
= 2.15 + 32.55 = 34.7 m 3
(Hasil yang diperoleh sama dengan volume vessel dalam data)
Volume Vessel = (2*V head ) + V silinder
Thickness Cylinder (Buku Towler)
= (14.36 psi*94.48inch)/(2*12900*1-14.36)
= 0.0526 inch + 0.125 = 0.178 inch
Thickness Torispherical
= 0.885*(14.36psi*47.24inch)/(12900-(0.1*14.36))
= 0.0465 inch + 0.125 = 0.1715 inch
t = (P*D)/(2*S*E-P)
t = 0,885*(P*R/(S*E-0,1*P))
V-402
Letaknya Horizontal
Carbon Steel
L/D = 3
Volume Vessel = 5 m3
Kondisi Operasi ,
P = 66 kPa = 9.57 psi
T = 65 ᵒC= 149 ᵒF
Asumsi ,
Grade SA285
Type head = torispherichal
E = 1 (full)
S = 12900 psi pada T = 149 ᵒF
Corrosion allowance = 0,125 inch
Design Vessel (V-402)
= (2*0,0778*D3) + (π*0,5D2*3D)
•D = (5 /2,5106)^1/3
= 1.258 m
= 49.527 inchi
•R 24.764 inchi
•L/D = 3 L = 3*D = 3* 49.527 inch = 148.581 inch
Pembuktian volume vessel
Volume Vessel = (2*0,0778*D3) + (π*0,5D2*3D)
= (2*0.0778* 1.258 m 3) + (3.14*(0.5* 1.258 m) 2*3* 1.258 m)
= 0.3098 + 4.6885 = 5 m 3
(Hasil yang diperoleh sama dengan volume vessel dalam data)
Volume Vessel = (2*V head ) + V silinder
Thickness Cylinder (Buku Towler)
= (9.57 psi*49.527inch)/(2*12900*1- 9.57)
= 0.0184 inch + 0.125 = 0.143 inch
Thickness Torispherical
= 0.885*(9.57 psi*24.764 inch)/(12900-(0.1* 9.57))
= 0.016 inch + 0.125 = 0.141 inch
t = (P*D)/(2*S*E-P)
t = 0,885*(P*R/(S*E-0,1*P))
V-403
Letaknya Horizontal
Carbon Steel
L/D = 3
Volume Vessel = 5 m3
Kondisi Operasi ,
P = 66 kPa = 9.57 psi
T = 119.5 ᵒC= 247.1 ᵒF
Asumsi ,
Grade SA285
Type head = torispherichal
E = 1 (full)
S = 12900 psi pada T = 149 ᵒF
Corrosion allowance = 0,125 inch
Design Vessel (V-403)
= (2*0,0778*D3) + (π*0,5D2*3D)
•D = (5 /2,5106)^1/3
= 1.258 m
= 49.527 inchi
•R 24.764 inchi
•L/D = 3 L = 3*D = 3* 49.527 inch = 148.581 inch
Pembuktian volume vessel
Volume Vessel = (2*0,0778*D3) + (π*0,5D2*3D)
= (2*0.0778* 1.258 m 3) + (3.14*(0.5* 1.258 m) 2*3* 1.258 m)
= 0.3098 + 4.6885 = 5 m 3
(Hasil yang diperoleh sama dengan volume vessel dalam data)
Volume Vessel = (2*V head ) + V silinder
Thickness Cylinder (Buku Towler)
= (9.57 psi*49.527inch)/(2*12900*1- 9.57)
= 0.0184 inch + 0.125 = 0.143 inch
Thickness Torispherical
= 0.885*(9.57 psi*24.764 inch)/(12900-(0.1* 9.57))
= 0.016 inch + 0.125 = 0.141 inch
t = (P*D)/(2*S*E-P)
t = 0,885*(P*R/(S*E-0,1*P))
Design Tower (T-401)Kondisi Operasi ,
P = 66 kPa = 9.57 psi
T = 119,5 ᵒC = 247,1 ᵒF
Asumsi ,
Grade SA285
Type head = torispherichal
E = 1 (full)
S = 12900 psi , T = 247,1 ᵒF
Corrosion allowance = 0.125
α = 30ᵒ
L= 28 m = 1102,36 inchi
topDiameter (D) = 3,6 m =141,73 inchi
Bottom Diameter (d) = 2,7 m = 106,29 inchi
H = 0,2887*(D-d)
= 0,2887*(3,6-2,7)
= 0,2598 m
Volume Tower
Torisperichal
Vo = 0,0778*D3
= 0,0778*(3,6)3
= 3,6298 m3
Cylindrical Shell
V = π*r2*t
= 3,14*(1,82)*28
= 284,86 m3
Cone
V = 0,262*H*(D2+Dd+d2)
= 0,262*0,2598*(3,62+(3,6*2,7)+2,72)
= 2,04 m3
Vtot = 3,6298 m3 + 284,86 m3 + 2,04 m3= 290,48 m3
Thickness Torispherical Head
t = 0,885*(P*R)/(S*E-0,1*P))
= 0,046 inch
t = t + 2*CA
= 0,046 inch + (2* 0,125)
= 0,171 inchi
Thickness Cylindrical Shell
t = P*D/(2*S*E-P)
= 0,0526 inchi
t = t + 2*CA
= 0,0526 inch + (2* 0,125)
= 0,1776 inchi
Thickness Conical
t = P*D/(2*cosα*(S*E-0,6*P))
= 0,061 inchi
t = t + 2*CA
= 0,061 + (2*0,125)
= 0,186 inchi
Design Tower (T-402)Kondisi Operasi ,
P =210 kPa = 30,45 psiT = 124,5 ᵒC = 256,1 ᵒF
Asumsi , Grade SA285Type head = torispherichalE = 1 (full)S = 13800 psi , T = 256,1 ᵒFCorrosion allowance = 0.125
t = 34,5 m = 1358,27 inchiD = 4,1 m = 161,42 inchiL/D = 42/5Volume Tower = 465,981 m3
Volume Tower
TorisperichalV = 0,0778*D3
= 0,0778*(4,1)3
= 5,362 m3
Vtot head = 2*V = 10,724 m3
Cylindrical ShellV = π*r2*t
= 3,14*(2,052)*34,5= 455,257 m3
Vtot = 10,724 m3 + 455,257 m3= 465,981 m3
Thickness Torispherical Head
t = 0,885*(P*R)/(S*E-0,1*P))
= 0,158 inch
t = t + 2*CA
= 0,158 + (2* 0,125 )
= 0,4836 inchi
Thickness Cylindrical Shell
t = P*D/(2*S*E-P)
= 0,178 inchi
t = t + 2*CA
= 0,178 + (2* 0,125 )
= 0,428 inchi
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